The TTAB is an administrative board that hears and decides adversary proceedings between two parties, namely, oppositions and cancellations. The TTAB also handles interference and concurrent use proceedings, as well as appeals of final refusals issued by USPTO Trademark Examining Attorneys.

Through the above link, access all relevant trademark contact information, including that for the Trademark Assistance Center, TMFeedback, Law Office Managing and Senior Attorneys, Division Managers, and Trademark Electronic Application System.